Django middleware for setting contexts in error documents

middleware.py

class ErrorHandler(object):
	def process_response(self, request, response):
		status = response.status_code
		if status == 200:
			return response
		else:
			from django.http import HttpResponse
			from django.template import RequestContext, loader
			try:
				t = loader.get_template( u'%d.html' % status )
				response = HttpResponse(t.render(RequestContext(request)), status = status)
			except:
				pass
		return response